OK this is interesting. Have you suggested to the GP that you see a urologist for a second opinion?? That is the first idea I would suggest. A second opinion is always valuable. Next- have you been checked ofr diabetes. What usual tests were done by the GP. as you can understand that is important to me. What was your PSA. Are you on any medications.

How much in the way of fluids do you drink?

is the urination normal... is it in long steady streams or dribbles. How many times do you get up at night to pee.

OK I believe---that BPH--large prostate needs to be expertly ruled out before you go on any other fishing expeditions. you have age and symptoms. i am not sure why you say you will become dehydrated... what kind of work do you do??In answer to your question, the BPH WOULD BE THE BLOCKAGE... unless there is some other thing doing it like a tumor etc.In our business we do say common things happen commonly...